support init database

alembic/versions/9da22f0df9d6_create_database.py

@@ -0,0 +1,27 @@
+"""create database
+
+Revision ID: 9da22f0df9d6
+Revises:
+Create Date: 2023-09-02 19:29:25.907607
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy import create_engine
+from sqlalchemy_utils import create_database
+
+# revision identifiers, used by Alembic.
+revision: str = '9da22f0df9d6'
+down_revision: Union[str, None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    pass
+
+
+def downgrade() -> None:
+    op.execute("DROP DATABASE wncloud")